This technical note provides an introduction to the CCM Modular Processor, a postprocessing software package. The Processor analyzes datasets such as the history tapes (Mass Storage volumes) output by the NCAR Community Climate Model (CCM), the input and boundary datasets used to initialize CCM2 and observational datasets which are written in CCM history tape format. This document is designed as a tutorial to teach new users how to access the Processor and complete simple tasks, and as a quick reference guide for more experienced users. The user is assumed to have at least a brief knowledge of the UNIX computing environment. This introductory document is not a comprehensive description of the Modular Processor, but an introduction to assist users in the practical aspects of accessing and using the Processor. This will enable the new user to begin using the Processor and complete simple tasks. This note makes the earlier document "Introduction to the CCM Modular Processor (Version PROC02)" NCAR/TN-289+IA, obsolete.